Kills 5 different types of pests on dogs - fleas, ticks, mosquitoes, lice and mites- Kills, repels and prevents re-infestation of fleas for up to 5 weeks- Kills flea eggs and larvae for up to 8 weeks- Kills, repels and prevents re-infestation of ticks for up to 6 weeks- Kills or repels mosquitoes, lice and mites on dogs for up to 4 weeks Manufacturer's Part Number: #600559